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July 11th, 2026 :: 7:00 am CDT   

Local Weather Report for
Decatur
Illinois, United States

 Current Decatur Weather Conditions Updated July 11th at 5:50 am 
Overcast
Temperature:70°F Dew Point:68°F
Barometer:29.98 inHg Wind:calm
Humidity:94.0% Visibility:0M
 
 Decatur Weather Forecast Summary  
 
Today
Jul 11th
Sunday
Jul 12th
Monday
Jul 13th
Tuesday
Jul 14th
Wednesday
Jul 15th
Mix of Sun and Cloud Sunny Sunny Sunny Sunny
78°F
79°F
64°F
81°F
61°F
84°F
65°F
86°F
72°F
 
 Decatur Detailed Weather Forecast  
 
Saturday, July 11th, 2026
Morning Temperature: 69°F
A mix of cloud and sun with a chance of showers.
Afternoon Temperature: 76°F
A mix of sun and cloud with a chance of showers or thundershowers. Windy at times.
Evening Temperature: 73°F
Mostly clear with a slight chance of showers or thundershowers. Windy at times.
Sunday, July 12th, 2026
Overnight Temperature: 66°F
Clear. Windy at times.
Morning Temperature: 70°F
Sunny. Windy at times.
Afternoon Temperature: 79°F
Sunny. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 69°F
Clear. Slight chance of a thunderstorm.
Monday, July 13th, 2026
Overnight Temperature: 62°F
Clear.
Morning Temperature: 68°F
Sunny.
Afternoon Temperature: 80°F
Sunny. Windy at times.
Evening Temperature: 73°F
Clear. Chance of a thunderstorm.
Tuesday, July 14th, 2026
Overnight Temperature: 66°F
Clear.
Morning Temperature: 72°F
Sunny.
Afternoon Temperature: 83°F
Mostly sunny. Chance of a thunderstorm.
Evening Temperature: 79°F
Clear. Chance of a thunderstorm.
Wednesday, July 15th, 2026
Overnight Temperature: 72°F
Clear. Chance of a thunderstorm.
Morning Temperature: 77°F
Sunny. Chance of a thunderstorm.
Afternoon Temperature: 85°F
Sunny with cloudy periods. Chance of a thunderstorm.
Evening Temperature: 80°F
Mostly clear. Chance of a thunderstorm.
Thursday, July 16th, 2026
Overnight Temperature: 72°F
Clear. Slight chance of a thunderstorm.
Morning Temperature: 77°F
Sunny with a chance of showers or thundershowers.
Afternoon Temperature: 85°F
Mostly sunny with a chance of showers or thundershowers. Windy at times.
Evening Temperature: 78°F
Clear. Chance of a thunderstorm.
Friday, July 17th, 2026
Overnight Temperature: 73°F
Clear. Slight chance of a thunderstorm.
Morning Temperature: 75°F
Sunny. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 84°F
Sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 78°F
Clear. Chance of a thunderstorm.
Saturday, July 18th, 2026
Overnight Temperature: 73°F
Clear. Slight chance of a thunderstorm. Windy at times.
Morning Temperature: 77°F
Sunny with cloudy periods. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 82°F
Mostly sunny. Chance of a thunderstorm. Windy.
Evening Temperature: 80°F
Clear with a chance of showers or thundershowers. Windy at times.
Sunday, July 19th, 2026
Overnight Temperature: 65°F
Clear with a slight chance of showers.
Morning Temperature: 67°F
A mix of sun and cloud. Windy at times.
Afternoon Temperature: 73°F
Mostly sunny. Windy at times.
Evening Temperature: 68°F
Clear with cloudy periods.





 

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This WeatherCity Weather Forecast for Decatur, Illinois, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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